Chest tightness and pressure after drinking is usually mainly due to increased myocardial oxygen consumption, digestive tract irritant reaction, inhibition of the central nervous system and other reasons. After drinking alcohol will make the heart rate faster, blood flow increase, resulting in insufficient blood supply to the myocardium, if not able to meet their own needs will lead to myocardial ischemia and hypoxia phenomenon, which in turn causes chest congestion, pressure sensation, and so on. Drinking alcohol will also produce stimulation of the digestive tract mucosa, especially gastric ulcer, gastritis and gastroesophageal reflux disease patients, often accompanied by heartburn, acid reflux symptoms, when the symptoms are more serious may cause chest congestion, pressure. In addition, a large amount of alcohol can inhibit the body’s central nervous system, too high a concentration of alcohol can also inhibit the respiratory center and thus cause chest congestion, pressure, and so on.